Murc’s Law

the widespread assumption that only Democrats have any agency or causal influence over American politics

You’ve Probably Never Heard of “Murc’s Law”, But You’ve Seen It in Action Lots of Times assembles several useful commentaries. (It has a good reference to Romney bitterness.)

See also Campos’ Exception from The paradoxical limits of Murc’s law:

If the government is shut down, that is because the party that is against the government [the Republicans] has succeeded in achieving its reason for existence, which is to not have a government, or at least one that actually works.